Difference between revisions of "GEOS-Chem model development priorities"

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'''''[[Main_Page|GEOS-Chem Main Page]] | [[GCHP_Main_Page|GCHP Main Page]]'''''
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On this page we list the current priorities for GEOS-Chem development. This list is continuously updated based on code readiness and input from the [https://geos-chem.seas.harvard.edu/geos-working-groups Working Groups] and the [https://geos-chem.seas.harvard.edu/geos-steering-cmte Steering Committee]. For history of past releases see the [[GEOS-Chem_versions|'''GEOS-Chem Versions wiki page''']].
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+
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On this page we list the current priorities for GEOS-Chem development. This list is continuously updated based on code readiness and input from the [http://acmg.seas.harvard.edu/geos/geos_working_groups.html Working Groups] and the [http://acmg.seas.harvard.edu/geos/geos_steering_cmte.html Steering Committee]. For history of past releases see the [[GEOS-Chem_versions|GEOS-Chem Versions wiki page]].
+
−
 
+
−
== Release schedule ==
+
−
 
+
−
Please see the [http://wiki.seas.harvard.edu/geos-chem/images/e/e1/GEOS-Chem_Release_Proposal.pdf GEOS-Chem Release Proposal] outlining the procedure and schedule for releasing GEOS-Chem versions.  
+
  
 
== Merged and awaiting release ==
 
== Merged and awaiting release ==
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{| border=1 cellspacing=0 cellpadding=5  
 
{| border=1 cellspacing=0 cellpadding=5  
 
|-bgcolor="#CCCCCC"
 
|-bgcolor="#CCCCCC"
−
!width="200px"|Patch version in development
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!width="300px"|Mergeable at any time
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!width="200px"|Minor version in development
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!width="200px"|Version in development
  
 
|-valign="top"
 
|-valign="top"
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|align="center"|'''[[GEOS-Chem 13.2.1]]'''
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|align="center"|'''[[GEOS-Chem no-diff-to-benchmark]]'''
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|align="center"|'''[[GEOS-Chem 13.2.0]]'''
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|align="center"|'''[[GEOS-Chem 14.5.0]]'''
  
 
|}
 
|}
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== Feature integration in progress ==
 
== Feature integration in progress ==
  
−
Features listed in this table are actively being integrated into GEOS-Chem by the [[GEOS-Chem Support Team]].  
+
Features listed in this table are actively being integrated into GEOS-Chem by the [https://geoschem.github.io/support-team.html GEOS-Chem Support Team]. In addition, we continuously implement structural updates in the model to maintain and develop coupling with other models including GEOS, CESM, and the model adjoint.  
  
 
{| border=1 cellspacing=0 cellpadding=5  
 
{| border=1 cellspacing=0 cellpadding=5  
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!width="100px"|Model scope
 
!width="100px"|Model scope
 
!width="100px"|Ease of implementation
 
!width="100px"|Ease of implementation
−
!width="300px"|Notes
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!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
−
|[https://github.com/geoschem/geos-chem/issues/547 Update US emissions to NEI2016] (as option)
+
|ALK4 & R4N2 chemistry
−
|Barron Henderson (EPA)<br>Lyssa Freese (MIT)
+
|Jared Brewer (UMN)
 +
|Chemistry
 +
|Simple
 +
|
 +
*[https://github.com/geoschem/geos-chem/pull/2352 geos-chem PR #1625]
 +
*[https://acmg.seas.harvard.edu/files/acmg/files/brewer2022.pdf Brewer, J.F. et al., J. Geophys. Res., 2023.]
 +
 
 +
|-valign="top"
 +
|Fix pressure handling in HEMCO standalone
 +
|Melissa Sulprizio (Harvard)
 +
|HEMCO
 +
|Simple
 +
|
 +
*[https://github.com/geoschem/HEMCO/issues/277 HEMCO issue #277]
 +
 
 +
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
 +
|Yi Wang (Iowa)<br>Jun Wang (Iowa)
 
|Emissions
 
|Emissions
−
|Easy
+
|Medium
 
|
 
|
−
*Files available at [ftp://newftp.epa.gov/Air/aqmg/global/NEI2016fh/ this ftp site]. Barron writes, "They have not yet been used in a publication, so I caution users to look for anything and report back."
+
*[https://github.com/geoschem/geos-chem/issues/1288 geos-chem issue #1288]
 +
*Incorporates new met field TSOIL1
  
 
|-valign="top"
 
|-valign="top"
−
|[https://github.com/geoschem/geos-chem/pull/459 Updates to enable automated run directory creation]
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|Fix obspack - not working in 14.4.0
−
|Liam Bindle (GCST)<br>Melissa Sulprizio (GCST)
+
|Bob Yantosca (Harvard)
−
|Run directory
+
|Diagnostics
 
|Medium
 
|Medium
 
|
 
|
 +
*[https://github.com/geoschem/geos-chem/issues/2328 geos-chem issue #2328]
  
 
|-valign="top"
 
|-valign="top"
−
|Upgrade Fast-J to Cloud-J
+
|Cloud-J v8.0 including UV H2O absorption
−
|Lizzie Lundgren (GCST)
+
|Lizzie Lundgren (Harvard)<br>Michael Prather (UCI)
−
|Structural
+
|Photolysis
−
|Difficult
+
|Medium
 
|
 
|
 +
*[https://github.com/geoschem/Cloud-J/issues/12 Cloud-J issue #12]
 +
*[https://datadryad.org/stash/dataset/doi:10.7280/D1Q398 Dataset]
 +
*[https://www.science.org/doi/10.1126/science.adn0415 Prather and Zhu (2024)]
  
 
|-valign="top"
 
|-valign="top"
−
|Migrating sulfate chemistry into KPP
+
|Make GC-Classic bit-for-bit reproducible upon restart
−
|Mike Long (GCST)
+
|Lizzie Lundgren (Harvard)
−
|Chemistry &<br>Structural
+
|GC-Classic
−
|Difficult
+
|Medium
 
|
 
|
−
* Also includes Moch et al HMS chemistry
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*[https://github.com/geoschem/HEMCO/issues/18 HEMCO issue #18]
−
* Also includes C2H4 and C2H2 chemistry
+
  
 
|-valign="top"
 
|-valign="top"
−
|[http://acmg.seas.harvard.edu/publications/2020/moch_2020_hms_global.pdf HMS chemistry]
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|Capture all trop and PBL height changes in budget diagnostics
−
|Jonathan Moch (Harvard)<br>Mike Long (GCST)
+
|Chris Holmes (FSU)<br>Lizzie Lundgren (Harvard)
−
|Chemistry
+
|Diagnostics
−
|Easy
+
|Medium
 
|
 
|
−
*See [https://github.com/geoschem/geos-chem/pull/456 geoschem/geos-chem PR #456]
+
*[https://github.com/geoschem/geos-chem/pull/2103 geos-chem PR 2103]
 +
 
 +
|}
 +
 
 +
== Prioritized and in the queue ==
 +
 
 +
Features listed in this table are prioritized for integration into GEOS-Chem in the near future.
 +
 
 +
{| border=1 cellspacing=0 cellpadding=5
 +
|-bgcolor="#CCCCCC"
 +
!width="200px"|Feature
 +
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="100px"|Ease of implementation
 +
!width="100px"|Delivery status
 +
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
−
|[https://github.com/geoschem/geos-chem/issues/560 C2H4 and C2H2 chemistry]
+
|Retire CH4, CO2, tagCO simulations in favor of carbon simulation
−
|Kelvin Bates (Harvard)<br>Ke Li (Harvard)<br>Mike Long (GCST)
+
|Melissa Sulprizio (Harvard)
−
|Chemistry
+
|Carbon gases
−
|Easy
+
|Simple
 
|
 
|
−
*Includes adding C2H4 and C2H2 as advected species with emissions
+
|
−
*See [https://github.com/geoschem/geos-chem/pull/813 geoschem/geos-chem PR #813]
+
*[https://github.com/geoschem/geos-chem/issues/2387 geos-chem issue #2387]
  
 
|-valign="top"
 
|-valign="top"
−
|[https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2020JD033439 CH3O2 + OH reaction]
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|New version of CEDS at 0.1 deg
−
|Kelvin Bates (Harvard)
+
|Dandan Zhang (WashU)
−
|Chemistry
+
|Emissions
−
|Easy
+
|Simple
 +
|Delivered June 2024
 
|
 
|
−
*Reaction stoichiometry and rate constant in KPP
+
*[https://github.com/geoschem/geos-chem/issues/1745 geos-chem issue #1745]
−
*See [https://github.com/geoschem/geos-chem/pull/814 geoschem/geos-chem PR #814]
+
  
 
|-valign="top"
 
|-valign="top"
−
|Cleaning up heterogeneous chemistry reaction rate computations
+
|Chemistry for RCOOH, updated monoterpenes, new PNs and ANs
−
|Bob Yantosca (GCST)
+
|Katie Travis (NASA)<br>Kelvin Bates (CU Boulder)
−
|Chemistry &<br>Structural
+
|GC-Classic
−
|Difficult
+
|Simple
 +
|Delivered June 2024
 
|
 
|
−
*See [https://github.com/geoschem/geos-chem/pull/817 geoschem/geos-chem PR #817]
+
*[https://github.com/geoschem/geos-chem/pull/2318 geos-chem PR #2318]
  
 
|-valign="top"
 
|-valign="top"
−
|[https://github.com/geoschem/HEMCO/issues/92 Avoid double counting of acetone source from monoterpenes when using online MEGAN]
+
|Use USTAR read from GEOS instead of calculating from U10M and V10M
−
|Dylan Millet (UMN)
+
|Yuanjian Zhang (WashU)
 
|Emissions
 
|Emissions
−
|Easy
+
|Simple
 +
|Delivered June 2024
 
|
 
|
−
*See [https://github.com/geoschem/HEMCO/pull/93 geoschem/HEMCO PR #93]
+
*[https://github.com/geoschem/HEMCO/pull/279 HEMCO PR #279]
 +
*NOTE: Mass tuning factors must be recomputed for each met field & resolution (GCClassic)
  
 
|-valign="top"
 
|-valign="top"
−
|[http://acmg.seas.harvard.edu/publications/2021/shah_est_2021.pdf Updated Hg chemistry in KPP]
+
|Correct the issue that injection height has been artifically decreased by HEMCO
−
|Viral Shah (Harvard)<br>Colin Thackray (Harvard)<br>Mike Long (Harvard)
+
|Yuanjian Zhang (WashU)
−
|Chemistry
+
|Emissions
−
|Medium
+
|Simple
 +
|Delivered June 2024
 
|
 
|
 +
*[https://github.com/geoschem/geos-chem/pull/279 geos-chem PR #2358]
  
 
|-valign="top"
 
|-valign="top"
−
|[https://acp.copernicus.org/preprints/acp-2021-605/ Aromatic VOC chemistry]
+
|PPN photolysis
−
|Kelvin Bates (Harvard)<br>Ke Li (Harvard)<br>Mike Long (Harvard)
+
|Bex Horner (UCL)
 
|Chemistry
 
|Chemistry
 
|Medium
 
|Medium
 +
|Delivered June 2024
 
|
 
|
 +
*[https://github.com/geoschem/geos-chem/pull/2371 geos-chem PR #2371]
 +
*[https://doi.org/10.5194/egusphere-2024-1541 Horner et al. (2024)]
 +
*Need to update Cloud-J input files accordingly
 +
 +
|}
 +
 +
== Ready to go in ==
 +
 +
Features listed in this table are ready to go in but have either not been delivered or are not yet prioritized for integration into GEOS-Chem.
 +
 +
{| border=1 cellspacing=0 cellpadding=5
 +
|-bgcolor="#CCCCCC"
 +
!width="200px"|Feature
 +
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="100px"|Delivery status
 +
!width="300px"|Notes and Refereneces
 +
  
 
|-valign="top"
 
|-valign="top"
−
|[https://gmd.copernicus.org/articles/14/4249/2021/gmd-14-4249-2021.html Updated offline dust emissions from Meng et al. (2021)]
+
|Binary Activity Thermodynamic (BAT) model for non-ideal mixing of water and organics in organic aerosol
−
|Jun Meng (WUStL)<br>Yanshun Li (WUStL)
+
|Camilo Serrano (McGill)<br>Andreas Zuend (McGill)
 +
|Aerosols
 +
|Not delivered
 +
|
 +
*[https://github.com/geoschem/geos-chem/issues/2392 geos-chem issue #2392]
 +
 
 +
|-valign="top"
 +
|Update UCX to include gravitational settling of aerosol species beyond just BCPI
 +
|Conor Barker (UCL)<br>Eloise Marais (UCL)
 +
|Aerosols
 +
|Not delivered
 +
|
 +
 
 +
|-valign="top"
 +
|Comment back in Ca, Mg, and K cations in aerosol thermo (HETP)
 +
|Becky Alexander (UW)
 +
|Aerosols
 +
|Not delivered
 +
|
 +
*[https://github.com/geoschem/geos-chem/issues/2391 geos-chem issue #2391]
 +
 
 +
|-valign="top"
 +
|Seasalt aerosol from sea ice leads (2002-2011)
 +
|Hannah Horrowitz (UIUC)
 +
|Aerosols
 +
|Not delivered
 +
|
 +
*Offline and online, ready to go in HEMCO (optional in addition to existing seasalt emissions)
 +
 
 +
|-valign="top"
 +
|Fire and anthropogenic emissions not currently turned on (monoterpenes, 1-butadiene etc.)
 +
|Katie Travis (NASA)<br>Kelvin Bates (CU Boulder)
 
|Emissions
 
|Emissions
−
|Easy
+
|Not delivered
 
|
 
|
−
*See [https://github.com/geoschem/geos-chem/pull/816 geoschem/geos-chem PR #816]
+
*[https://github.com/geoschem/geos-chem/issues/2390 geos-chem issue #2390]
  
 
|-valign="top"
 
|-valign="top"
−
|GEOS updates
+
|Global organic N dep from various emissions; nitrate aromatics updates
−
|Christoph Keller (GMAO)<br>Lizzie Lundgren (GCST)
+
|May Fu (SUSTech)
−
|GEOS
+
|Chemistry +<br>Deposition
−
|Medium (ongoing)
+
|Not delivered
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|CESM-GC updates
+
|Dry deposition to F90 to improve readability
−
|Thibaud Fritz (MIT)<br>Lizzie Lundgren (GCST)
+
|Chris Holmes (FSU)
−
|CESM
+
|Dry Deposition
−
|Medium (ongoing)
+
|Not delivered
 
|
 
|
 +
*[https://github.com/geoschem/geos-chem/issues/2389 geos-chem issue #2389]
  
 
|-valign="top"
 
|-valign="top"
−
|GMAO library version updates
+
|Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange
−
|Tom Clune (GMAO)<br>Ben Auer (GMAO)<br>Atanas Trayanov<br>GCST
+
|Joey Lam  (CUHK)<br>Amos Tai (CUHK)
−
|GCHP
+
|Dry deposition
−
|Medium (ongoing)
+
|Delivered<br>Feb 2021
 
|
 
|
 +
*[https://github.com/geoschem/geos-chem/pull/629 geos-chem PR #629]
  
 
|-valign="top"
 
|-valign="top"
−
|GCHP Adjoint updates
+
|FRP-based fire emissions for eastern US at 0.2 (2019-2020)
−
|Colin Lee (Wash U.)
+
|Chris Holmes (FSU)
−
|GCHP Adjoint
+
|Emissions
−
|Medium (ongoing)
+
|Not delivered
 
|
 
|
−
*See [https://github.com/geoschem/MAPL/pull/12 geoschem/MAPL PR #12]
+
*[https://github.com/geoschem/geos-chem/issues/2388 geos-chem issue #2388]
  
−
|}
+
|-valign="top"
 +
|China agriculture NH3 emissions
 +
|Amos Tai (CUHK)
 +
|Emissions
 +
|Not delivered
 +
|
  
−
== Ongoing feature integration ==
+
|-valign="top"
 +
|T-dependent anthropogenic VOCs
 +
|May Fu (SUSTech)
 +
|Emissions
 +
|Not delivered
 +
|
 +
*Option. Requires processing existing anthropogenic VOC emissions to generate offline emissions to read in. Parameterised for China.
  
−
Features listed in this table are in progress and work is ongoing. Updates are continuously added to the standard model as they are available.
+
|-valign="top"
 +
|New source functions for transport tracers beryllium-7 and beryllium-10
 +
|Minjie Zheng (ETH)
 +
|Emissions
 +
|Delivered<br>June 2024
 +
|
 +
*Available at https://zenodo.org/records/8372652
  
−
{| border=1 cellspacing=0 cellpadding=5
+
|-valign="top"
−
|-bgcolor="#CCCCCC"
+
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
−
!width="200px"|Feature
+
|Yang Li (Baylor U)<br>Loretta Mickley (Harvard)
−
!width="200px"|Contributor(s)
+
|Emissions
−
!width="100px"|Model scope
+
|Delivered
−
!width="100px"|Ease of implementation
+
|
−
!width="300px"|Notes
+
*Data involves many files- need to think about temporal frequency
  
 
|-valign="top"
 
|-valign="top"
−
|GCHP Adjoint
+
|Australian Hg emissions (2000-2019)
−
|Colin Lee (CU Boulder)<br>Daven Henze (CU Boulder)
+
|Stephen MacFarlane (Wollongong)<br>Jenny Fisher (Wollongong)
−
|Structural
+
|Emissions
 +
|Not delivered
 
|
 
|
 +
*[https://pubs.rsc.org/en/content/articlelanding/2022/em/d2em00019a MacFarlane et al. (2024)]
 +
*Includes emissions from black and brown coal power plants, various metal production/processing sources (Aluminium, gold, copper, lead, etc), waste products, cement production, oil refining and petroleum, chlor alkali plants, and cremation
 +
 +
|-valign="top"
 +
|Hg geogenic emissions (volcanic, rock weathering)
 +
|Eric Roy (MIT)
 +
|Emissions
 +
|Not delivered
 
|
 
|
 +
*[https://github.com/geoschem/geos-chem/issues/2361 geos-chem #2361]
 +
*[https://gmd.copernicus.org/preprints/gmd-2024-65/ Dastoor et al. (2024)]
  
 
|-valign="top"
 
|-valign="top"
−
|CESM-GC
+
|Hg biomass burning - FINN2.5 & GFED4
−
|Sebastian Eastham (MIT)<br>Thibauld Fritz (MIT)<br>Haipeng Lin (Harvard)<br>Lizzie Lundgren (Harvard)
+
|Eric Roy (MIT)
−
|Structural
+
|Emissions
 +
|Not delivered
 
|
 
|
 +
*[https://github.com/geoschem/geos-chem/issues/2361 geos-chem #2361]
 +
*[https://gmd.copernicus.org/preprints/gmd-2024-65/ Dastoor et al. (2024)]
 +
 +
|-valign="top"
 +
|BCC-GC online
 +
|Lin Zhang (PKU)
 +
|External Model
 +
|Not delivered
 
|
 
|
 +
 +
|-valign="top"
 +
|GC-YIBS with online fire emissions
 +
|Xu Yue (NUIST)<br>Hong Liao (NUIST)
 +
|External Model
 +
|Not delivered
 +
|
 +
 +
|-valign="top"
 +
|GISS-GC offline (GCAP)
 +
|Lee Murray (Rochester)
 +
|GCAP
 +
|Not delivered
 +
|
 +
 +
|-valign="top"
 +
|Archived TCR-2 OH fields for carbon simulations
 +
|Kazu Miyazaki (JPL)
 +
|Input data
 +
|Not delivered
 +
|
 +
*This will be the default OH, but users will have the option of selecting other OH fields
  
 
|}
 
|}
  
−
== Feature integration in the queue ==
+
== Almost there (< 6 months) ==
  
−
Features listed in this table have been delivered to the GEOS-Chem Support Team and are prioritized to be integrated into GEOS-Chem in the near future.
+
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team within the next 6 months.
  
−
{| border=1 cellspacing=0 cellpadding=5  
+
{|border=1 cellspacing=0 cellpadding=5
−
|-bgcolor="#CCCCCC"
+
|- bgcolor="#cccccc"
 
!width="200px"|Feature
 
!width="200px"|Feature
 
!width="200px"|Contributor(s)
 
!width="200px"|Contributor(s)
 
!width="100px"|Model scope
 
!width="100px"|Model scope
−
!width="100px"|Ease of implementation
+
!width="420px"|Notes and References
−
!width="300px"|Notes
+
  
 
|-valign="top"
 
|-valign="top"
−
|[https://acp.copernicus.org/articles/21/1861/2021/ Updated Rn-222 emissions]
+
|Dust non-sphericity impacts on optical properties
−
|Bo Zhang
+
|Inderjeet Singh (WashU)
−
|Emissions
+
|Aerosols
−
|Easy
+
 
|
 
|
−
*Existing Rn emissions will remain as an option
 
−
*Original data at https://doi.org/10.5281/zenodo.3942287
 
−
*Waiting for data submission in NetCDF format
 
  
 
|-valign="top"
 
|-valign="top"
−
|[https://github.com/geoschem/geos-chem/issues/331 Climatologies for lightning NOx]
+
|Fixes to stratospheric aerosol settling
−
|Lee Murray (Rochester)
+
|Connor Barker (UCL)<br>Eloise Marais (UCL)
−
|Emissions
+
|Aerosols
−
|Easy
+
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|[https://www.pnas.org/content/117/42/26076 Updated aerosol dry deposition]
+
|DMS chemistry in v14
−
|Jeff Pierce (CSU)
+
|Linia Tashmim (UCR)<br>Will Porter (UCR)
−
|Dry deposition
+
|Chemistry
−
|Easy
+
 
|
 
|
−
*See [https://github.com/geoschem/geos-chem/issues/604 geoschem/geos-chem #604]
 
  
 
|-valign="top"
 
|-valign="top"
−
|[https://doi.org/10.5194/acp-2021-441 Updates to IONO2 hydrolysis from Wang et al. (2021)]
+
|KPP standalone + 3D Interface
−
|Tomas Sherwen (York)
+
|Obin Sturm (USC)
 
|Chemistry
 
|Chemistry
−
|Medium
 
 
|
 
|
−
*See [https://github.com/geoschem/geos-chem/pull/719 geoschem/geos-chem PR #719]
 
−
*Needs to be merged with Bob Yantosca's gckpp_HetRates.F90 updates slated for 13.3.0
 
  
 
|-valign="top"
 
|-valign="top"
−
|[https://acp.copernicus.org/articles/19/7055/2019/ Joint CO2-CO-CH4-OCS simulation]
+
|NO2+OH+H2O kinetics
−
|Beata Bukosa (NIWA)<br>Kevin Bowman (JPL)
+
|Mat Evans (York)
−
|Specialty simulation
+
|Chemistry
−
|Medium
+
 
|
 
|
−
*See [https://github.com/geoschem/geos-chem/issues/654 geoschem/geos-chem #654]
 
−
*Ideally implemented as a chemical mechanism in KPP
 
  
 
|-valign="top"
 
|-valign="top"
−
|[https://gmd.copernicus.org/articles/13/2475/2020/gmd-13-2475-2020.pdf Adaptive chemical solver] (as option)
+
|LSODES solver in KPP for faster kinetics
−
|Lu Shen (Harvard)
+
|Haipeng Lin (Harvard)
 
|Chemistry
 
|Chemistry
−
|Difficult
 
 
|
 
|
−
*Needs to be merged with Bob Yantosca's gckpp_HetRates.F90 updates slated for 13.3.0
 
  
−
|}
+
|-valign="top"
 +
|Load balancing in chemistry solver (GCHP)
 +
|Zhouran Sun (WashU)
 +
|Chemistry +<br>Performance
 +
|
  
−
== Feature integration not yet prioritized ==
+
|-valign="top"
 +
|Active chemistry in mesosphere for both GCHP and GCClassic
 +
|Helena McDonald (MIT)<br>Sebastian Eastham (ICL)
 +
|Chemistry
 +
|
  
−
Features listed in this table have been delivered to the GEOS-Chem Support Team but are not yet prioritized for integrating into the model.
+
|-valign="top"
 +
|Updated aromatic oxidation
 +
|Stephen MacFarlane (Wollongong)<br>Jenny Fisher (Wollongong)
 +
|Chemistry
 +
|
  
−
{| border=1 cellspacing=0 cellpadding=5
+
|-valign="top"
−
|-bgcolor="#CCCCCC"
+
|MCO3 uptake by cloud forming MP; leading to lower PAN
−
!width="200px"|Feature
+
|Laura Yang (Harvard)
−
!width="200px"|Contributor(s)
+
|Chemistry
−
!width="100px"|Model scope
+
|
−
!width="100px"|Ease of implementation
+
−
!width="300px"|Notes
+
  
 
|-valign="top"
 
|-valign="top"
−
|[https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2006GL026015 Stratospheric HCN chemistry]
+
|Implement isotope simulation for CH4 in the carbon simulation
−
|Armin Kleinbohl (JPL)<br>Debra Weisenstein (Harvard, retired)
+
|Lee Murray (Rochester)
 
|Chemistry
 
|Chemistry
−
|Medium
 
 
|
 
|
−
*Delivered to GCST (Jun 2020)
+
*Will have to change negative emissions from soil to a first-order loss process
  
 
|-valign="top"
 
|-valign="top"
−
|[https://gmd.copernicus.org/articles/13/2569/2020/ MEGAN3]
+
|Documentation for adding additional aerosol species
 +
|Connor Barker (UCL)
 +
|Documentation
 +
|
 +
 
 +
|-valign="top"
 +
|Column diagnostics
 +
|Lizzie Lundgren (Harvard)<br>Viral Shah (GMAO)
 +
|Diagnostics
 +
|
 +
 
 +
|-valign="top"
 +
|TOMAS rate diagnostics -- improve performance
 +
|Betty Croft (WashU/Dal)
 +
|Diagnostics +<br>Performance
 +
|
 +
 
 +
|-valign="top"
 +
|Archive gamma values from heterogeneous chemistry
 +
|Bob Yantosca (Harvard)
 +
|Diagnostics
 +
|
 +
 
 +
|-valign="top"
 +
|RRTMG Documentation
 +
|GCST
 +
|Documentation
 +
|
 +
 
 +
|-valign="top"
 +
|Canopy Physics Model
 
|Sam Silva (MIT)
 
|Sam Silva (MIT)
 +
|Dry Deposition
 +
|
 +
*Available at https://zenodo.org/records/3614062#.XzvrH5NKjOR (GEOS-Chem 12.3.0)
 +
 +
|-valign="top"
 +
|Dry deposition diagnostics by land cover
 +
|Holly Nowell (FSU)<br>Chris Holmes (FSU)
 +
|Dry Deposition
 +
|
 +
 +
|-valign="top"
 +
|Dry deposition process diagnostics
 +
|Holly Nowell (FSU)<br>Chris Holmes (FSU)
 +
|Dry Deposition
 +
|
 +
 +
|-valign="top"
 +
|Biomass burning for TOMAS
 +
|Nicole June (CSU)
 +
|Emissions +<br>Microphysics
 +
|
 +
 +
|-valign="top"
 +
|Historic biomass burning (1750-2010)
 +
|Pengfei Liu (Georgia Tech)
 
|Emissions
 
|Emissions
−
|Medium
 
 
|
 
|
−
*Implementation details may be found at https://zenodo.org/record/3614062#.XzvrH5NKjOR
 
  
 
|-valign="top"
 
|-valign="top"
−
|[https://acp.copernicus.org/articles/17/3699/2017/ GC-YIBs biosphere-atmospheric chemistry coupled model]
+
|Rice methane emissions
−
|Xu Yue (NUIST)
+
|Zichong Cheng (Harvard)
−
|Science
+
|Emissions+<br>Carbon simulation
−
|Easy
+
 
|
 
|
−
*See [https://github.com/geoschem/geos-chem/issues/425 geoschem/geos-chem #425]
 
  
 
|-valign="top"
 
|-valign="top"
−
|[http://acmg.seas.harvard.edu/presentations/IGC9/posters/Tue_Posters_lam_joey.pdf Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
+
|Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3)
−
|Joey Lam(CUHK)<br>Amos Tai (CUHK)
+
|Tia Scarpelli (Carbon Mapper)<br>Melissa Sulprizio (Harvard)
−
|Science
+
|Emissions
−
|Easy
+
 
|
 
|
−
*Delivered to GCST (Feb 2021)
 
−
*See [https://github.com/geoschem/geos-chem/pull/629 geoschem/geos-chem #629]
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[Stratospheric_chemistry#Treatment_of_the_mesosphere_in_UCX_simulations|Extend UCX into the mesosphere]]
+
|New prior CO2 biospheric fluxes from CMS-FLUX and GMAO
−
|Sebastian Eastham (MIT)<br>Eric Fleming (NASA GMAO)
+
|Kevin Bowman (JPL)<br>Lesley Ott (GMAO)
−
|Chemistry
+
|Emissions
−
|Easy
+
 
|
 
|
 +
*GMAO can provide high-resolution  fluxes (as high as 12 km)
  
 
|-valign="top"
 
|-valign="top"
−
|Archived CMIP6 Met Products for GEOS-Chem Input
+
|Snowpack Br2 emission
−
|Lee Murray (Rochester)
+
|Chris Holmes (FSU)
−
|Input data
+
|Emissions
−
|Easy
+
 
|
 
|
−
*See updates from [http://acmg.seas.harvard.edu/geos/word_pdf_docs/steering_cmte/gc_sc_minutes_24Feb2021.pdf Feb 2021 GCSC meeting]
 
−
*Official announcement coming soon
 
  
 
|-valign="top"
 
|-valign="top"
−
|Landcover/Fire Emissions Offline LPJlmfire
+
|EDGAR v8.1_toxHg emissions for 1970-2022
−
|Loretta Mickley (Harvard)<br>Yang Li (Harvard)
+
|Eric Roy (MIT)
 
|Emissions
 
|Emissions
−
|Easy
 
 
|
 
|
−
*Data files delivered to GCST (July 2021)
 
  
 
|-valign="top"
 
|-valign="top"
−
|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
+
|Improve pressure handling in GCHP advection
−
|Sam Silva (MIT)
+
|Yuanjian Zhang (WashU)<br>Seb Eastham (ICL)
−
|Science
+
|GCHP
−
|Medium
+
|
 +
 
 +
|-valign="top"
 +
|Add error trap for duplicate scale factors in HEMCO
 +
|Bob Yantosca (Harvard)
 +
|HEMCO
 +
|
 +
 
 +
|-valign="top"
 +
|Integration testing: Add stretched grid
 +
|Lizzie Lundgren (Harvard)
 +
|Quality Assurance
 +
|
 +
 
 +
|-valign="top"
 +
|Integration testing: Add GCHP mass flux run
 +
|Lizzie Lundgren (Harvard)
 +
|Quality Assurance
 +
|
 +
 
 +
|-valign="top"
 +
|Integration testing: Add run with all diagnostics turned on
 +
|GCST
 +
|Quality Assurance
 +
|
 +
 
 +
|-valign="top"
 +
|Integration testing: Reinstate TOMAS40
 +
|Betty Croft (Dalhousie/WashU)
 +
|Quality Assurance
 +
|
 +
 
 +
|-valign="top"
 +
|Strat-adjusted RF in GCC and GCHP
 +
|Connor Barker (UCL)<br>Eloise Marais (UCL)
 +
|Radiation
 +
|
 +
 
 +
|-valign="top"
 +
|Continue cleanup of C-preprocessor switches
 +
|Lizzie Lundgren (Harvard)
 +
|Structural
 +
|
 +
 
 +
|-valign="top"
 +
|Updates to Luo deposition scheme
 +
|Gan Luo (Albany)
 +
|Wet Deposition
 +
|
 +
*New version, keep as switch (not default)
 +
 
 +
|-valign="top"
 +
|Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer
 +
|Gan Luo (Albany)<br>Fangqun Yu (Albany)
 +
|Wet Deposition
 
|
 
|
−
*Code is available at https://zenodo.org/record/3614062
 
  
 
|}
 
|}
  
−
== Almost there (< 6 months) ==
+
== Over the horizon (6-12 months) ==
  
−
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team within the next 6 months.
+
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 6-12 months timeframe.
  
 
{| border=1 cellspacing=0 cellpadding=5
 
{| border=1 cellspacing=0 cellpadding=5
Line 341: Line 576:
 
!width="200px"|Contributor(s)
 
!width="200px"|Contributor(s)
 
!width="100px"|Model scope
 
!width="100px"|Model scope
−
!width="420px"|Notes
+
!width="420px"|Notes and References
  
 +
|-valign="top"
 +
|ML algorithms for bulk aerosol
 +
|Arshad Nair (Albany)<br>Fangqun Yu (Albany)
 +
|Aerosols
 +
|
  
 
|-valign="top"
 
|-valign="top"
−
|[https://github.com/geoschem/geos-chem/issues/559 Implement H2 chemistry in UCX]
+
|Heterogeneous sulfate chemistry
−
|Chris Holmes (FSU)
+
|Katie Travis (NASA)
 
|Chemistry
 
|Chemistry
 
|
 
|
−
*Identified as a priority for GC 13, but not yet delivered
 
  
 +
|-valign="top"
 +
|H2 as an active species
 +
|Seb Eastham (ICL)
 +
|Chemistry
 +
|
  
 
|-valign="top"
 
|-valign="top"
−
|[https://iopscience.iop.org/article/10.1088/1748-9326/ac16a3 New soil NOx parameterization]
+
|HCN, acetonitrile as fire tracers
−
|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
+
|Kevin Bates (CU Boulder)
−
|Emissions
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|[[Grid-independent_emissions|Updated offline biogenic emissions]]
+
|Implement ethane in carbon simulation
−
|Hongjian Weng (PKU)
+
|Yuzhong Zhang (Westlake)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|Mesospheric source of CO
 +
|Dylan Jones (UofT)<br>Pam Wales (NASA GSFC)
 
|Emissions
 
|Emissions
 
|
 
|
−
*Identified as a priority for GC 13, but not yet delivered
 
−
*Waiting on updated MODIS LAI data
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[Grid-independent_emissions|Updated offline sea salt emissions]]
+
|Drought-stress algorithm
−
|Hongjian Weng (PKU)
+
|Wei Li (Houston)
 
|Emissions
 
|Emissions
 
|
 
|
−
*Identified as a priority for GC 13, but not yet delivered
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[Grid-independent_emissions|Updated offline soil NOx emissions]]
+
|Physically-based resolution correction for BVOC emissions using MEGAN
−
|Hongjian Weng (PKU)
+
|May Fu (SUSTech)
 
|Emissions
 
|Emissions
 
|
 
|
−
*Identified as a priority for GC 13, but not yet delivered
 
  
 
|-valign="top"
 
|-valign="top"
−
|Provide recommended rather than hard-coded scaling factors for online emissions
+
|Canadian forest fire prediction system (Canada government forecast model)
−
|GCST
+
|Robin Stevens (Montreal)
 
|Emissions
 
|Emissions
 
|
 
|
−
*Identified as a priority for GC 13, but not yet developed
 
  
 
|-valign="top"
 
|-valign="top"
−
|[https://github.com/geoschem/geos-chem/issues/331 Provide climatologies for volcano emissions]
+
|Cooking emissions (not biofuel)
−
|GCST
+
|Kelvin Bates (CU Boulder)
 
|Emissions
 
|Emissions
 
|
 
|
−
*Identified as a priority for GC 13, but not yet developed
 
  
 
|-valign="top"
 
|-valign="top"
−
|[https://github.com/geoschem/geos-chem/issues/331 Provide climatologies for open fire emissions]
+
|State-specific annual emissions scaling factors (US) (1990-2021)
−
|GCST
+
|Ishir Dutta (MIT)
 
|Emissions
 
|Emissions
 
|
 
|
−
*Identified as a priority for GC 13, but not yet developed
 
  
 
|-valign="top"
 
|-valign="top"
−
|Diagnostic to archive XCO2, XCO, and XCH4
+
|GISS-GC online
−
|Dylan Jones (Toronto)
+
|Lee Murray (Rochester)
−
|Diagnostic
+
|External model
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Provide archived TCR-2 GEOS-Chem OH fields for carbon simulations
+
|Hybrid MPI-OpenMP in GCHP
−
|Kazu Miyazaki (JPL)
+
|Seb Eastham (MIT)<br>Killian Murphy (York)<br>Lizzie Lundgren (Harvard)
−
|Input data
+
|GCHP
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|BrC aging
+
|MAPL3: Update to MAPL3 in GCHP, including replacement of ExtData.rc and HISTORY.rc with YAML files
−
|Xuan Wang (Harvard)<br>Melanie Hammer(Dalhousie)
+
|Lizzie Lundgren (Harvard)
 +
|GCHP
 +
|
 +
 
 +
|-valign="top"
 +
|MAPL3: Comply with MAPL "positive" standard in GCHP diagnostic files
 +
|Lizzie Lundgren (Harvard)
 +
|GCHP
 +
|
 +
 
 +
|-valign="top"
 +
|MAPL3: Wildcards in GCHP History
 +
|Lizzie Lundgren (Harvard)
 +
|GCHP
 +
|
 +
 
 +
|-valign="top"
 +
|MAPL3: Output emissions with positive up convention in GCHP
 +
|Lizzie Lundgren (Harvard)
 +
|GCHP
 +
|
 +
 
 +
|-valign="top"
 +
|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone
 +
|Bob Yantosca (Harvard)
 +
|Performance
 +
|
 +
 
 +
|-valign="top"
 +
|Photophysical oxidation of aldehydes
 +
|Paulo Sebastianelli (Wollongong)<br>Jenny Fisher (Wollongong)
 
|Chemistry
 
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Shared Socioeconomic Pathways Emission Inventories
+
|DMS updates
−
|Hong Liao (NUIST)
+
|Will Porter (UCR)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|Furans emission and chemistry
 +
|Lixu Jin (Montana)<br>Lu Hu (Montana)
 +
|Chemistry + <br>Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|Cl2 prodcution from Fe aerosol
 +
|Qianjie Chen (HK Poly)<br>Becky Alexander (UW)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|VCP emissions
 +
|Kevin Bates (CU Boulder)
 
|Emissions
 
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Rediagnosis of RAS convection in GEOS-Chem
+
|Bidirectional land-atmosphere exchange for Hg
−
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA/GMAO)
+
|Yuying Cui (MIT/Tsinghua)
−
|Convection
+
|Hg simulation
 
|
 
|
−
*Work is finished and a manuscript is in preparation.
 
  
 
|-valign="top"
 
|-valign="top"
−
|Read-in of native GEOS output
+
|OH covariances for inversions
−
|WUStL GCST
+
|Elise Penn (Harvard)
−
|Input data
+
|Inversions
 
|
 
|
−
*GCHP only
 
  
 
|-valign="top"
 
|-valign="top"
−
|Change GCHP advection inputs to use total pressure and mixing ratio rather than dry
+
|CESM2-GC offline
−
|Sebastian Eastham (MIT)
+
|Seb Eastham (ICL)<br>Lee Murray (Rochester)
−
|Transport
+
|Met fields
 
|
 
|
−
*Identified as a priority for GC 13, but not yet delivered
 
−
*GCHP only
 
  
 
|-valign="top"
 
|-valign="top"
−
|Add capability to read mass fluxes for use in advection
+
|Re-binning of off-line sea salt and dust for TOMAS
−
|Sebastian Eastham (MIT)
+
|Betty Croft (Dalhousie)
−
|Transport
+
|Microphysics
 
|
 
|
−
*Identified as a priority for GC 13, but not yet delivered
 
−
*GCHP only
 
  
 
|-valign="top"
 
|-valign="top"
−
|HTAPv3 emissions (0.1 deg, 2002-2018)
+
|TOMAS nucleation updates
−
|Emissions & Deposition WG
+
|Sam O'Donnell (CSU)
−
|Emissions
+
|Microphysics
 
|
 
|
  
−
|}
+
|-valign="top"
 +
|Stratospheric aerosol APM
 +
|Fangqun Yu (SUNY Albany)
 +
|Microphysics
 +
|
  
−
== Over the horizon (6-12 months) ==
+
|-valign="top"
 +
|Transition from MERRA-2 to GEOS-IT for benchmarking
 +
|Yuanjian Zhang (WashU)
 +
|Quality Assurance
 +
|
  
−
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 6-12 months timeframe.
+
|-valign="top"
 +
|Automate integration testing on AWS
 +
|Yidan Tang (WashU)
 +
|Quality Assurance
 +
|
  
−
{| border=1 cellspacing=0 cellpadding=5
+
|-valign="top"
−
|- bgcolor="#cccccc"
+
|Integration testing: Add across end of year run
−
!width="200px"|Feature
+
|GCST
−
!width="200px"|Contributor(s)
+
|Quality Assurance
−
!width="100px"|Model scope
+
|
−
!width="420px"|Notes
+
  
 
|-valign="top"
 
|-valign="top"
−
|Methylethylketone chemistry
+
|Integration testing: Add GEOS-IT
−
|Jared Brewer (CSU)
+
|Yuanjian Zhang (WashU)
−
|Chemistry
+
|Quality Assurance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Add sulfate dependence to SOA yield from isoprene in simple SOA
+
|Separate mixing, emissions, and drydep
−
|Eloise Marais (Leicester)
+
|Yuanjian Zhang (WashU)
−
|Chemistry
+
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|GTMM updates
+
|Intel IFX compiler
−
|Ben Geyman (Harvard)
+
|Bob Yantosca (Harvard)
−
|Hg simulation
+
|Structural
 
|
 
|
  
 +
|-valign="top"
 +
|CMake option to only build libraries but not executable, also passing C-preprocessor statements to turn off code
 +
|Bob Yantosca (Harvard)<br>Lee Murray (Rochester)
 +
|Structural
 +
|
  
 
|-valign="top"
 
|-valign="top"
−
|[https://github.com/geoschem/GCHP/issues/19 Integrating GMAO's tracer gridded component in GCHP]
+
|Remove differences introduced when breaking up GC-Classic runs in time; and flexible precision in HEMCO
−
|Christoph Keller (NASA GMAO)
+
|Lizzie Lundgren (Harvard)
−
|Transport Tracer simulation
+
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Streamlining of specialty simulations through HEMCO and KPP
+
|Limit allocation of State_Met to what is needed per simulation
−
|GCST
+
|Melissa Sulprizio (Harvard)
−
|Chemistry, Specialty simulations
+
|Structural
 +
|
 +
 
 +
|-valign="top"
 +
|Using 3-D precipitation fluxes to calculate precipitation formation and re-evaporation in scavenging (to be consistent with GEOS/GOCART & ground precipitation)
 +
|Gan Luo (Albany)<br>Hongyu Liu (NIA/LaRC)<br>Bo Zhang (NIA/LaRC)
 +
|Wet deposition
 
|
 
|
  
Line 510: Line 817:
  
 
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 12-24 months timeframe.
 
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 12-24 months timeframe.
 +
 
{| border=1 cellspacing=0 cellpadding=5
 
{| border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
|- bgcolor="#cccccc"
Line 515: Line 823:
 
!width="200px"|Contributor(s)
 
!width="200px"|Contributor(s)
 
!width="100px"|Model scope
 
!width="100px"|Model scope
−
!width="420px"|Notes
+
!width="420px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
−
|Implement isotope simulation for CO and CH4 in GCHP
+
|Modal aerosol model (MAM7) in GCHP
−
|Lee Murray (Rochester)
+
|Shreya Sharma (MIT)
−
|Specialty simulation
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Migrate LETFK DA scheme to GCHP
+
|Online OCIM ocean biogeochemistry
−
|Kazu Miyazaki (JPL)
+
|Lee Murray (Rochester)<br>Hannah Horowitz (UIUC)<br>Chris Holmes (FSU)
−
|Structural
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Super fast chemistry scheme
+
|Perchlorate chemistry
−
|Benjamin Brown-Steiner (AER)<br>Makoto Kelp (Harvard)
+
|Yuk Chun Chan (UW)
 
|Chemistry
 
|Chemistry
 
|
 
|
−
*SF mechanism has been implemented and benchmarked in GEOS-Chem 12.0.0. This mechanism is of interest for those groups wanting fast global simulation of oxidation fields in GEOS-Chem simulations focused on aerosol microphysics.
 
−
*The machine-learned chemical solver is still probably 12 months away from online implementation into GEOS-Chem.
 
  
 
|-valign="top"
 
|-valign="top"
−
|Add non-volatile cations to ISORROPIA
+
|Non-stomatal dry deposition (2-layer canopy model)
−
|Becky Alexander (UW)
+
|Michael Vermeuel (Purdue)
−
|Aerosols
+
|Dry Deposition
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|DMS oxidation scheme updating
+
|Continental chloride particle emissions (salty dust, road salt)
−
|Becky Alexander (UW)<br>Qianjie Chen (UW)
+
|Jessica Haskins (Utah)
 +
|Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|Multivolatility emission inventory to address gaps in EDGAR/HTAP etc.
 +
|Ruochong (Tshingua)
 +
|Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|Lightning NOx production rates
 +
|Bex Horner (UCL)
 +
|Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|HFO and CF3CHO
 +
|Beth Killen (Wollongong)<br>Jenny Fisher (Wollongong)
 
|Chemistry
 
|Chemistry
 
|
 
|
−
*Delayed - implemented pre-KPP
 
−
*Currently bring implemented in KPP by UC Riverside group
 
  
 
|-valign="top"
 
|-valign="top"
−
|Heterogeneous sulfate production
+
|Glyoxal updates from isoprene
−
|Lin Zhang (PKU)<br>Becky Alexander (UW)<br>Yuxuan Wang (U. Houston)
+
|Tzung-May Fu (SUSTech)
 
|Chemistry
 
|Chemistry
 
|
 
|
−
*Delayed - implemented pre-KPP
 
  
 
|-valign="top"
 
|-valign="top"
−
|Hg in WRF-GC
+
|Iodine chemistry
−
|Yanxu Zhang (Nanjing)
+
|Becky Alexander (UW)<br>Xuan Wang (CUHK)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|GFED5 biomass burning
 +
|Eric Roy (MIT)
 +
|Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|Ocean Hg surface concentrations for 2010-2020 from multi-model ensemble
 +
|Eric Roy (MIT)<br>Ari Feinberg (IQF-CSIC)
 
|Hg simulation
 
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Hg with blowing snow
+
|Soil Hg emissions 2010-2020
−
|Yanxu Xhang (Nanjing)
+
|Eric Roy (MIT)<br>Ari Feinberg (IQF-CSIC)
−
|Emissions, Hg simulation
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Hg isotopes
+
|Air-sea exchange parameterization
−
|Xiaotian Xu, Yanxu Xhang (Nanjing)
+
|Eric Roy (MIT)
 
|Hg simulation
 
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Hg in CESM CAM-CHEM
+
|Soil Hg emissions parameterization
−
|Peng Zhang, Yanxu Xhang (Nanjing)
+
|Ari Feinberg (IQF-CSIC)
 
|Hg simulation
 
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Complex / multicomplex variables
+
|Sea salt uptake of GOM
−
|Shannon Capps (Drexel)
+
|Eric Roy (MIT)
 +
|Hg simulation
 +
|
 +
 
 +
|-valign="top"
 +
|Photoreduction rate constant
 +
|Eric Roy (MIT)
 +
|Hg simulation
 +
|
 +
 
 +
|-valign="top"
 +
|New observations (2010-2020) in standardized Hg benchmark for intercomparison
 +
|Eric Roy (MIT)/Ari Feinberg (IQF-CSIC)
 +
|Hg simulation
 +
|
 +
 
 +
|-valign="top"
 +
|Hg simulation in GCHP
 +
|Eric Roy (MIT)
 +
|Hg simulation
 +
|
 +
 
 +
|-valign="top"
 +
|OCIM - biogeochemical model - (C/P/N/Fe - no Hg yet) (MATLAB)
 +
|Hannah Horowitz (UIUC)
 +
|Hg simulation
 +
|
 +
 
 +
|-valign="top"
 +
|Possibly updating Hg oxidation chemistry based on Utah field campaigns
 +
|Jessica Haskins (Utah)
 +
|Hg simulation
 +
|
 +
 
 +
|-valign="top"
 +
|New halogen/aerosol fields (surface area / AOD) from 10-year 14.4 benchmark simulation available online
 +
|Viral Shah (NASA GMAO); Eric Roy (MIT); Ari Feinberg (IQF-CSIC)
 +
|Input data
 +
|
 +
 
 +
|-valign="top"
 +
|Extend IMI to CO2 (ICI)
 +
|Hannah Nesser (JPL)
 +
|Inversions
 +
|
 +
 
 +
|-valign="top"
 +
|Global emission inventory of metals
 +
|Tzung-May Fu (SUSTech); He Zhong Tian (Peking Normal U)
 +
|Metals simulation
 +
|
 +
 
 +
|-valign="top"
 +
|Investigate and improve performance of aerosol chemistry
 +
|Bob Yantosca (Harvard)
 +
|Performance
 +
|
 +
 
 +
|-valign="top"
 +
|PAH - update from version 11
 +
|Lexia Cicone (MIT)
 +
|POPs simulation
 +
|
 +
 
 +
|-valign="top"
 +
|Species database more accessible; doc updates; TOL discussion
 +
|Jessica Haskins (Utah)
 
|Structural
 
|Structural
 
|
 
|
  
−
|}
+
|-valign="top"
 +
|Stretched-grid plotting in GCPy
 +
|Killian Murphy (York)
 +
|Tools
 +
|
  
−
----------------
+
|-valign="top"
 +
|Model inter-comparison of transport (GEOS, GCHP, GCClassic)
 +
|Lizzie Lundgren (Harvard), Emma Knowland (NASA)
 +
|Transport
 +
|
  
−
'''''[[Main_Page|GEOS-Chem Main Page]] | [[GCHP_Main_Page|GCHP Main Page]]'''''
+
|-valign="top"
 +
|Comparing mass fluxes in GCHP vs. traditional lat/lon wind
 +
|Yuanjian Zhang (WashU), Seb Eastham (ICL)
 +
|Transport
 +
|
 +
 
 +
|}

Latest revision as of 11:52, 19 July 2024

On this page we list the current priorities for GEOS-Chem development. This list is continuously updated based on code readiness and input from the Working Groups and the Steering Committee. For history of past releases see the GEOS-Chem Versions wiki page.

Merged and awaiting release

See the links below for items merged and awaiting release.

Mergeable at any time Version in development
GEOS-Chem no-diff-to-benchmark GEOS-Chem 14.5.0

Feature integration in progress

Features listed in this table are actively being integrated into GEOS-Chem by the GEOS-Chem Support Team. In addition, we continuously implement structural updates in the model to maintain and develop coupling with other models including GEOS, CESM, and the model adjoint.

Feature Contributor(s) Model scope Ease of implementation Notes and References
ALK4 & R4N2 chemistry Jared Brewer (UMN) Chemistry Simple
Fix pressure handling in HEMCO standalone Melissa Sulprizio (Harvard) HEMCO Simple
New soil NOx parameterization Yi Wang (Iowa)
Jun Wang (Iowa) 		Emissions Medium
Fix obspack - not working in 14.4.0 Bob Yantosca (Harvard) Diagnostics Medium
Cloud-J v8.0 including UV H2O absorption Lizzie Lundgren (Harvard)
Michael Prather (UCI) 		Photolysis Medium
Make GC-Classic bit-for-bit reproducible upon restart Lizzie Lundgren (Harvard) GC-Classic Medium
Capture all trop and PBL height changes in budget diagnostics Chris Holmes (FSU)
Lizzie Lundgren (Harvard) 		Diagnostics Medium

Prioritized and in the queue

Features listed in this table are prioritized for integration into GEOS-Chem in the near future.

Feature Contributor(s) Model scope Ease of implementation Delivery status Notes and References
Retire CH4, CO2, tagCO simulations in favor of carbon simulation Melissa Sulprizio (Harvard) Carbon gases Simple
New version of CEDS at 0.1 deg Dandan Zhang (WashU) Emissions Simple Delivered June 2024
Chemistry for RCOOH, updated monoterpenes, new PNs and ANs Katie Travis (NASA)
Kelvin Bates (CU Boulder) 		GC-Classic Simple Delivered June 2024
Use USTAR read from GEOS instead of calculating from U10M and V10M Yuanjian Zhang (WashU) Emissions Simple Delivered June 2024
  • HEMCO PR #279
  • NOTE: Mass tuning factors must be recomputed for each met field & resolution (GCClassic)
Correct the issue that injection height has been artifically decreased by HEMCO Yuanjian Zhang (WashU) Emissions Simple Delivered June 2024
PPN photolysis Bex Horner (UCL) Chemistry Medium Delivered June 2024

Ready to go in

Features listed in this table are ready to go in but have either not been delivered or are not yet prioritized for integration into GEOS-Chem.

Feature Contributor(s) Model scope Delivery status Notes and Refereneces


Binary Activity Thermodynamic (BAT) model for non-ideal mixing of water and organics in organic aerosol Camilo Serrano (McGill)
Andreas Zuend (McGill) 		Aerosols Not delivered
Update UCX to include gravitational settling of aerosol species beyond just BCPI Conor Barker (UCL)
Eloise Marais (UCL) 		Aerosols Not delivered
Comment back in Ca, Mg, and K cations in aerosol thermo (HETP) Becky Alexander (UW) Aerosols Not delivered
Seasalt aerosol from sea ice leads (2002-2011) Hannah Horrowitz (UIUC) Aerosols Not delivered
  • Offline and online, ready to go in HEMCO (optional in addition to existing seasalt emissions)
Fire and anthropogenic emissions not currently turned on (monoterpenes, 1-butadiene etc.) Katie Travis (NASA)
Kelvin Bates (CU Boulder) 		Emissions Not delivered
Global organic N dep from various emissions; nitrate aromatics updates May Fu (SUSTech) Chemistry +
Deposition 		Not delivered
Dry deposition to F90 to improve readability Chris Holmes (FSU) Dry Deposition Not delivered
Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange Joey Lam (CUHK)
Amos Tai (CUHK) 		Dry deposition Delivered
Feb 2021
FRP-based fire emissions for eastern US at 0.2 (2019-2020) Chris Holmes (FSU) Emissions Not delivered
China agriculture NH3 emissions Amos Tai (CUHK) Emissions Not delivered
T-dependent anthropogenic VOCs May Fu (SUSTech) Emissions Not delivered
  • Option. Requires processing existing anthropogenic VOC emissions to generate offline emissions to read in. Parameterised for China.
New source functions for transport tracers beryllium-7 and beryllium-10 Minjie Zheng (ETH) Emissions Delivered
June 2024
LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100 Yang Li (Baylor U)
Loretta Mickley (Harvard) 		Emissions Delivered
  • Data involves many files- need to think about temporal frequency
Australian Hg emissions (2000-2019) Stephen MacFarlane (Wollongong)
Jenny Fisher (Wollongong) 		Emissions Not delivered
  • MacFarlane et al. (2024)
  • Includes emissions from black and brown coal power plants, various metal production/processing sources (Aluminium, gold, copper, lead, etc), waste products, cement production, oil refining and petroleum, chlor alkali plants, and cremation
Hg geogenic emissions (volcanic, rock weathering) Eric Roy (MIT) Emissions Not delivered
Hg biomass burning - FINN2.5 & GFED4 Eric Roy (MIT) Emissions Not delivered
BCC-GC online Lin Zhang (PKU) External Model Not delivered
GC-YIBS with online fire emissions Xu Yue (NUIST)
Hong Liao (NUIST) 		External Model Not delivered
GISS-GC offline (GCAP) Lee Murray (Rochester) GCAP Not delivered
Archived TCR-2 OH fields for carbon simulations Kazu Miyazaki (JPL) Input data Not delivered
  • This will be the default OH, but users will have the option of selecting other OH fields

Almost there (< 6 months)

Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team within the next 6 months.

Feature Contributor(s) Model scope Notes and References
Dust non-sphericity impacts on optical properties Inderjeet Singh (WashU) Aerosols
Fixes to stratospheric aerosol settling Connor Barker (UCL)
Eloise Marais (UCL) 		Aerosols
DMS chemistry in v14 Linia Tashmim (UCR)
Will Porter (UCR) 		Chemistry
KPP standalone + 3D Interface Obin Sturm (USC) Chemistry
NO2+OH+H2O kinetics Mat Evans (York) Chemistry
LSODES solver in KPP for faster kinetics Haipeng Lin (Harvard) Chemistry
Load balancing in chemistry solver (GCHP) Zhouran Sun (WashU) Chemistry +
Performance
Active chemistry in mesosphere for both GCHP and GCClassic Helena McDonald (MIT)
Sebastian Eastham (ICL) 		Chemistry
Updated aromatic oxidation Stephen MacFarlane (Wollongong)
Jenny Fisher (Wollongong) 		Chemistry
MCO3 uptake by cloud forming MP; leading to lower PAN Laura Yang (Harvard) Chemistry
Implement isotope simulation for CH4 in the carbon simulation Lee Murray (Rochester) Chemistry
  • Will have to change negative emissions from soil to a first-order loss process
Documentation for adding additional aerosol species Connor Barker (UCL) Documentation
Column diagnostics Lizzie Lundgren (Harvard)
Viral Shah (GMAO) 		Diagnostics
TOMAS rate diagnostics -- improve performance Betty Croft (WashU/Dal) Diagnostics +
Performance
Archive gamma values from heterogeneous chemistry Bob Yantosca (Harvard) Diagnostics
RRTMG Documentation GCST Documentation
Canopy Physics Model Sam Silva (MIT) Dry Deposition
Dry deposition diagnostics by land cover Holly Nowell (FSU)
Chris Holmes (FSU) 		Dry Deposition
Dry deposition process diagnostics Holly Nowell (FSU)
Chris Holmes (FSU) 		Dry Deposition
Biomass burning for TOMAS Nicole June (CSU) Emissions +
Microphysics
Historic biomass burning (1750-2010) Pengfei Liu (Georgia Tech) Emissions
Rice methane emissions Zichong Cheng (Harvard) Emissions+
Carbon simulation
Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3) Tia Scarpelli (Carbon Mapper)
Melissa Sulprizio (Harvard) 		Emissions
New prior CO2 biospheric fluxes from CMS-FLUX and GMAO Kevin Bowman (JPL)
Lesley Ott (GMAO) 		Emissions
  • GMAO can provide high-resolution fluxes (as high as 12 km)
Snowpack Br2 emission Chris Holmes (FSU) Emissions
EDGAR v8.1_toxHg emissions for 1970-2022 Eric Roy (MIT) Emissions
Improve pressure handling in GCHP advection Yuanjian Zhang (WashU)
Seb Eastham (ICL) 		GCHP
Add error trap for duplicate scale factors in HEMCO Bob Yantosca (Harvard) HEMCO
Integration testing: Add stretched grid Lizzie Lundgren (Harvard) Quality Assurance
Integration testing: Add GCHP mass flux run Lizzie Lundgren (Harvard) Quality Assurance
Integration testing: Add run with all diagnostics turned on GCST Quality Assurance
Integration testing: Reinstate TOMAS40 Betty Croft (Dalhousie/WashU) Quality Assurance
Strat-adjusted RF in GCC and GCHP Connor Barker (UCL)
Eloise Marais (UCL) 		Radiation
Continue cleanup of C-preprocessor switches Lizzie Lundgren (Harvard) Structural
Updates to Luo deposition scheme Gan Luo (Albany) Wet Deposition
  • New version, keep as switch (not default)
Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer Gan Luo (Albany)
Fangqun Yu (Albany) 		Wet Deposition

Over the horizon (6-12 months)

Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 6-12 months timeframe.

Feature Contributor(s) Model scope Notes and References
ML algorithms for bulk aerosol Arshad Nair (Albany)
Fangqun Yu (Albany) 		Aerosols
Heterogeneous sulfate chemistry Katie Travis (NASA) Chemistry
H2 as an active species Seb Eastham (ICL) Chemistry
HCN, acetonitrile as fire tracers Kevin Bates (CU Boulder) Chemistry
Implement ethane in carbon simulation Yuzhong Zhang (Westlake) Chemistry
Mesospheric source of CO Dylan Jones (UofT)
Pam Wales (NASA GSFC) 		Emissions
Drought-stress algorithm Wei Li (Houston) Emissions
Physically-based resolution correction for BVOC emissions using MEGAN May Fu (SUSTech) Emissions
Canadian forest fire prediction system (Canada government forecast model) Robin Stevens (Montreal) Emissions
Cooking emissions (not biofuel) Kelvin Bates (CU Boulder) Emissions
State-specific annual emissions scaling factors (US) (1990-2021) Ishir Dutta (MIT) Emissions
GISS-GC online Lee Murray (Rochester) External model
Hybrid MPI-OpenMP in GCHP Seb Eastham (MIT)
Killian Murphy (York)
Lizzie Lundgren (Harvard) 		GCHP
MAPL3: Update to MAPL3 in GCHP, including replacement of ExtData.rc and HISTORY.rc with YAML files Lizzie Lundgren (Harvard) GCHP
MAPL3: Comply with MAPL "positive" standard in GCHP diagnostic files Lizzie Lundgren (Harvard) GCHP
MAPL3: Wildcards in GCHP History Lizzie Lundgren (Harvard) GCHP
MAPL3: Output emissions with positive up convention in GCHP Lizzie Lundgren (Harvard) GCHP
Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone Bob Yantosca (Harvard) Performance
Photophysical oxidation of aldehydes Paulo Sebastianelli (Wollongong)
Jenny Fisher (Wollongong) 		Chemistry
DMS updates Will Porter (UCR) Chemistry
Furans emission and chemistry Lixu Jin (Montana)
Lu Hu (Montana) 		Chemistry +
Emissions
Cl2 prodcution from Fe aerosol Qianjie Chen (HK Poly)
Becky Alexander (UW) 		Chemistry
VCP emissions Kevin Bates (CU Boulder) Emissions
Bidirectional land-atmosphere exchange for Hg Yuying Cui (MIT/Tsinghua) Hg simulation
OH covariances for inversions Elise Penn (Harvard) Inversions
CESM2-GC offline Seb Eastham (ICL)
Lee Murray (Rochester) 		Met fields
Re-binning of off-line sea salt and dust for TOMAS Betty Croft (Dalhousie) Microphysics
TOMAS nucleation updates Sam O'Donnell (CSU) Microphysics
Stratospheric aerosol APM Fangqun Yu (SUNY Albany) Microphysics
Transition from MERRA-2 to GEOS-IT for benchmarking Yuanjian Zhang (WashU) Quality Assurance
Automate integration testing on AWS Yidan Tang (WashU) Quality Assurance
Integration testing: Add across end of year run GCST Quality Assurance
Integration testing: Add GEOS-IT Yuanjian Zhang (WashU) Quality Assurance
Separate mixing, emissions, and drydep Yuanjian Zhang (WashU) Structural
Intel IFX compiler Bob Yantosca (Harvard) Structural
CMake option to only build libraries but not executable, also passing C-preprocessor statements to turn off code Bob Yantosca (Harvard)
Lee Murray (Rochester) 		Structural
Remove differences introduced when breaking up GC-Classic runs in time; and flexible precision in HEMCO Lizzie Lundgren (Harvard) Structural
Limit allocation of State_Met to what is needed per simulation Melissa Sulprizio (Harvard) Structural
Using 3-D precipitation fluxes to calculate precipitation formation and re-evaporation in scavenging (to be consistent with GEOS/GOCART & ground precipitation) Gan Luo (Albany)
Hongyu Liu (NIA/LaRC)
Bo Zhang (NIA/LaRC) 		Wet deposition

Longer term (12-24 months)

Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 12-24 months timeframe.

Feature Contributor(s) Model scope Notes and References
Modal aerosol model (MAM7) in GCHP Shreya Sharma (MIT) Aerosols
Online OCIM ocean biogeochemistry Lee Murray (Rochester)
Hannah Horowitz (UIUC)
Chris Holmes (FSU) 		Chemistry
Perchlorate chemistry Yuk Chun Chan (UW) Chemistry
Non-stomatal dry deposition (2-layer canopy model) Michael Vermeuel (Purdue) Dry Deposition
Continental chloride particle emissions (salty dust, road salt) Jessica Haskins (Utah) Emissions
Multivolatility emission inventory to address gaps in EDGAR/HTAP etc. Ruochong (Tshingua) Emissions
Lightning NOx production rates Bex Horner (UCL) Emissions
HFO and CF3CHO Beth Killen (Wollongong)
Jenny Fisher (Wollongong) 		Chemistry
Glyoxal updates from isoprene Tzung-May Fu (SUSTech) Chemistry
Iodine chemistry Becky Alexander (UW)
Xuan Wang (CUHK) 		Chemistry
GFED5 biomass burning Eric Roy (MIT) Emissions
Ocean Hg surface concentrations for 2010-2020 from multi-model ensemble Eric Roy (MIT)
Ari Feinberg (IQF-CSIC) 		Hg simulation
Soil Hg emissions 2010-2020 Eric Roy (MIT)
Ari Feinberg (IQF-CSIC) 		Hg simulation
Air-sea exchange parameterization Eric Roy (MIT) Hg simulation
Soil Hg emissions parameterization Ari Feinberg (IQF-CSIC) Hg simulation
Sea salt uptake of GOM Eric Roy (MIT) Hg simulation
Photoreduction rate constant Eric Roy (MIT) Hg simulation
New observations (2010-2020) in standardized Hg benchmark for intercomparison Eric Roy (MIT)/Ari Feinberg (IQF-CSIC) Hg simulation
Hg simulation in GCHP Eric Roy (MIT) Hg simulation
OCIM - biogeochemical model - (C/P/N/Fe - no Hg yet) (MATLAB) Hannah Horowitz (UIUC) Hg simulation
Possibly updating Hg oxidation chemistry based on Utah field campaigns Jessica Haskins (Utah) Hg simulation
New halogen/aerosol fields (surface area / AOD) from 10-year 14.4 benchmark simulation available online Viral Shah (NASA GMAO); Eric Roy (MIT); Ari Feinberg (IQF-CSIC) Input data
Extend IMI to CO2 (ICI) Hannah Nesser (JPL) Inversions
Global emission inventory of metals Tzung-May Fu (SUSTech); He Zhong Tian (Peking Normal U) Metals simulation
Investigate and improve performance of aerosol chemistry Bob Yantosca (Harvard) Performance
PAH - update from version 11 Lexia Cicone (MIT) POPs simulation
Species database more accessible; doc updates; TOL discussion Jessica Haskins (Utah) Structural
Stretched-grid plotting in GCPy Killian Murphy (York) Tools
Model inter-comparison of transport (GEOS, GCHP, GCClassic) Lizzie Lundgren (Harvard), Emma Knowland (NASA) Transport
Comparing mass fluxes in GCHP vs. traditional lat/lon wind Yuanjian Zhang (WashU), Seb Eastham (ICL) Transport
Retrieved from "https://wiki.seas.harvard.edu/geos-chem/index.php?title=GEOS-Chem_model_development_priorities&oldid=54029"